The act of inserting a fist full of multicoloured skittle sweets, into the rectal passage, before being rogered in the poop choob. After the money shot, the brave buccaneer takes position and the fruity goo is ejected into his or her mouth, trying to guess what colour or flavour they will get next.

Hey, I played Rainbow Russian Roulette with Dave Smiths mum and dad last night! Dirty Fuckers!